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pro vyhledávání: '"James D. Beaman"'
Publikováno v:
Mathematics Magazine. 79:347-359
Young Brian Snavely has a train set with many kinds of track: straight pieces, curves, bridges, tunnels, X-pieces (to make figure-8s), and switches. Brian likes them all, but it was the switches that led us to an interesting mathematical problem. Swi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::27f3e9fb0c5696379bc054bc0ee3b086
https://doi.org/10.1080/0025570x.2006.11953431
https://doi.org/10.1080/0025570x.2006.11953431
